EP 2539850 A1 20130102 - STEGANOGRAPHY WITH PHOTO-RESPONSIVE DYES
Title (en)
STEGANOGRAPHY WITH PHOTO-RESPONSIVE DYES
Title (de)
STEGANOGRAPHIE MIT LICHTREAKTIVEN MATRIZEN
Title (fr)
STÉNOGRAPHIE À COLORANTS PHOTOSENSIBLES
Publication
Application
Priority
- US 71405510 A 20100226
- US 2011026068 W 20110224
Abstract (en)
[origin: US2011210173A1] An article identifier or code including at least one photo-responsive dye and a method of encoding or embedding information in same. A reader device for decoding or extracting information in an article identifier or code and verifying or authenticating that information and the associated extraction and authentication methods.
IPC 8 full level
G06K 7/10 (2006.01); B41M 3/14 (2006.01); G06K 7/12 (2006.01); G06K 19/06 (2006.01); G06V 10/143 (2022.01); G06V 10/145 (2022.01)
CPC (source: EP US)
B41M 3/144 (2013.01 - EP US); G06K 7/12 (2013.01 - EP US); G06K 19/06046 (2013.01 - EP US); G06K 19/0614 (2013.01 - US); G06V 10/143 (2022.01 - EP US); G06V 10/145 (2022.01 - EP US); G06K 2019/06225 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2011210173 A1 20110901; US 8678290 B2 20140325; EP 2539850 A1 20130102; EP 2539850 A4 20140115; US 2014124578 A1 20140508; US 9619687 B2 20170411; WO 2011106522 A1 20110901
DOCDB simple family (application)
US 71405510 A 20100226; EP 11748063 A 20110224; US 2011026068 W 20110224; US 201414156005 A 20140115